Algae Shield® is a liquid algae prevention product intended for use in swimming pools treated with chlorine. Algae Shield® should not be used in pools treated with Baquacil*, SoftSwim** or other biguanide products, or pools maintained with PristineBlue®. Algae Shield® should not be used in conjunction with other algae treatments, flocculants, or metal-out products.

Algae Shield® works within a wide pH range, but for bather comfort, maintain the pH between 7.2 and 7.6 or as recommended by your swimming pool retailer.

*Baquacil is a trademark of Avecia, Inc.
**SoftSwim is a trademark of BioLab, Inc.

To prevent algae in your chlorine pool apply Algae Shield® at a dose of 1 ounce per 1,000 gallons of pool water, once a month. DO NOT ADD Algae Shield® more than once a month, and do not exceed this recommended dosage rate.

If algae is already visible in your pool, send Algae Shield® to the rescue!

1. Add Algae Shield® at a rate of 2 ounces per 1,000 gallons of water.
2. Run filter constantly for 48 hours.
3. Add a standard chlorine shock to oxidize any dead algae.

DO NOT ADD ANY Algae Shield® for 30 days, and do not exceed this recommended dosage rate. After 30 days, apply Algae Shield® at a rate of 1 ounce per 1,000 gallons once a month to prevent recurrence (see FOR ALGAE PREVENTION instructions above.)

A single treatment of Algae Shield® at the end of the swim season is normally all it takes to keep a pool crystal clear until spring.

1. Balance water.
2. Shock the pool with a standard chlorine shock.
3. Clean pool and backwash filter.
4. Add 1 ounce of Algae Shield® per 1,000 gallons of pool water.
5. Follow pool equipment manufacturers' freeze recommendations. Unused Algae Shield® must be stored at a temperature above 32 degrees Fahrenheit
6. Cover pool and shut down filter.
7. In the spring, open pool per your pool retailer's instructions.